This study examines speakers’ reaction to focally applied temporal real-time auditory feedback perturbation in a word-initial unstressed syllable (Unstressed condition) and a similar word-medial stressed syllable (Stressed condition) in a three-syllabic word. Speakers compensate locally in both conditions for the perturbed syllable’s nucleus (V; compressed by the perturbation) but not for the complex onsets (CC; stretched by the perturbation). The perturbation of the first, unstressed syllable causes a global slowing down of all segments following the perturbation (syllable two and three), while the perturbation in the Stressed condition elicits local adjustments only in the perturbed (second) syllable. When viewed in a larger prosodic context, the timing strategy in the Unstressed condition indicates that speakers aim to keep relative durations within the word constant when the word-initial onset is auditorily stretched, leading to a compensatory pattern for both CC and V in word-proportional durations. In the Stressed condition, increasing the stressed vowel’s duration seems to be of the highest priority, causing all other segments to take up a shorter portion within the word. Adaptation effects of the stressed vowel indicate a durational representation on the segment level. Further adaptation effects additionally suggest a representation of timing/coordination in larger prosodic units. Complementary investigation of aperiodicity, spectral skewness, and intensity (RMS) indicates that spectral properties can change along with compensatorily increased duration.

本研究检查说话者对词首非重读音节（非重读条件）和类似的词中重读重读音节（重读条件）中焦点应用的时间实时听觉反馈扰动的反应) 在一个三音节词中。说话者在这两种情况下都会对扰动音节的核（V；被扰动压缩）进行局部补偿，但不会补偿复杂的起始音（CC；被扰动拉伸）。第一个非重读音节的扰动导致扰动后的所有片段（音节二和三）的整体减慢，而重读条件下的扰动仅在扰动（第二个）音节中引起局部调整。当在更大的韵律环境中观察时，非重读条件下的计时策略表明，当词首开始在听觉上被拉伸时，说话者的目标是保持词内的相对持续时间不变，从而导致词中 CC 和 V 的补偿模式-成比例的持续时间。在受压状态下，增加重读元音的持续时间似乎是最高优先级，导致所有其他片段在单词中占据较短的部分。重读元音的适应效果表明了片段级别的持续表示。进一步的适应效果还表明在更大的韵律单元中表示时间/协调。对非周期性、光谱偏斜和强度 (RMS) 的补充研究表明，光谱特性会随着持续时间的补偿性增加而变化。